Description: Mechanical Rotation Chairs (MRCs) have proven very successful with both diagnostics and treatments of patients with Benign Paroxysmal Positional Vertigo (BPPV). Previous studies have shown that an MRC offer superior diagnostics by being more sensitive (and thereby accurate) than traditional BPPV diagnostics. With canalith repositioning maneuver (CRM) refractory BPPV patients (retractable BPPV cases, multi-canal BPPV, cupulolithiasis subtype BPPV), MRCs provide successful treatment with overall success rates of 90+ percentages. Even very retractable BPPV cases (defined by a need of more than ten MRC treatments) can also, to a large extent, be treated successfully by individually targeted treatments.

Outcome Objectives: The primary objective is to describe results from ten years of clinical experience and research with two separate MRCs on BPPV diagnostics and -treatments. A total of twelve (seven originating from own Tertiary University Hospital based outpatient clinic) clinical trials evaluating both BPPV diagnostics and -treatments with MRCs will be included.

Background: Patients with BPPV may be seen, diagnosed, and treated by many different health care professionals, e.g. General Practitioners or Physiotherapists (primary sector), ENT Specialists (secondary sector) or Neurotologists at highly specialized University Hospital-based centers (tertiary sector). Despite an a priori good prognosis for successful treatment, ten to twenty percent of patients diagnosed with BPPV cannot be treated successfully by means of traditional CRMs carried out on an examination bed. Therefore, several new therapeutic modalities like bi- axial MRCs have been developed.

Description: The purpose of this instructional course is to show clinicians how to perform the video head impulse test (vHIT) properly. In order to do this, it is of paramount importance to learn all of the following: 1) theory behind the head impulse test, 2) how to perform the vHIT test, 3) how to avoid artifacts and noise, 4) how to read vHIT test results, and 5) how to interpret vHIT test results. All recommendations will be based upon best clinical practice reflecting current scientific evidence.

Outcome Objectives: Following this instructional course, attendees will know how to perform the vHIT optimally. This includes an understanding of the theory behind the vHIT test as well as an understanding of the correct and optimal vHIT test procedures (test set-up and practical use). Prerequisites for post-vHIT test interpretation skills include: 1) quality of test, 2) identification of noise and artefacts, 3) when to use (or not use) manual data selection, 4) how to read the test results, and 5) how to interpret the test results (pathological test parameter requirements).

Background: During the last decade, use of the vHIT has become more and more common and widespread for evaluation of vestibular function. The test is generally widely accepted amongst patients and, the test itself, is often considered fairly easy and fast to carry out. However, sufficient knowledge on how to perform the vHIT correctly is not so commonly encountered. If carried out correctly, the vHIT has a very high negative predictive value and, if pathological, discerns information on the Vestibulo-Ocular-Reflex (VOR) with all three paired semicircular canals. If not carried out correctly, patients may wrongly be diagnosed with a vestibular hypofunction or wrongly be acquitted of having a vestibular disease.